R.dr46.r4c3.15x8.zvb Zp4.mp4 -

: Used by stewards to review incidents. The filename allows them to quickly identify the driver (Dr46) and the specific race (R4) without opening the file.

: In autonomous driving or machine learning, such strings identify the specific sensor (zp4) and the environment parameters (zvb).

: This is likely a Session Code or Codec Tag . It may identify the specific server, weather preset, or encryption key used during the recording.